亲爱的必克英语学员：

由于我们工作的疏忽，导致昨天（5月7日）“每日话题”中的“话题延伸”部分内容出现错误。在此，向您表示真诚的歉意！也向为我们反馈错误的学员给予真诚感谢!

我们已经组织老师对过往的话题部分进行审核，确认话题延伸内容没有任何问题，请学员们放心复习与记录。目前我们已在审核上设置双层校对，确保今后不再让类似的问题发生！

现将原先错误与改正过后的内容公布如下：

（1）原来有误的话题延伸内容：

Evenly on the magnetic card is a plastic film coated with a layer made of magnetic particulate materials. IC card is IC chip is packaged in a small brass plate and mosaics in the plastic card. We are now widely used bank cards belonging to a magnetic card. It gave us the handsome gently stroke to complete payment, eliminating the change, and many other problems. We use bank cards is the process of re-magnetic card swipe machine records heads to read and process. Advantages of magnetic cards are easy to read and write, low in cost, and disadvantages of magnetic cards are easy to wear, easy to other magnetic field interference. So it is best not to take it and mobile phone, key in a Pocket, because the magnetic field causes the magnetic card phone failure, the key will scratch the magnetic stripe. China's second generation ID card is used in the latest IC Card technology, not only can it use non-contact, you can also contact machine readable, the success of the security, confidentiality and non-contact touch in conjunction quickly and easily. Relative to the magnetic card,IC card information is stored in the chip, which makes it less susceptible to interference and damage, the service life is long; while chip capacity is much higher than the magnetic card, has an edge on the storage of personal information. But its shortcomings are obviously, fabrication costs are relatively high, in addition, corrupt or missing cards easily after relative magnetic cards. 

(2)更正后的话题延伸内容：

There is a plastic film coated with a layer made of magnetic particulate materials on the magnetic card while IC card is IC chip packaged in a small brass plate and mosaics.

We are now widely using bank cards with magnetic stripe.It gave us the handsome gently stroke to complete payment, eliminating many other problems.

Let's check the advantages and disadvantages of the magnetic cards now.

Advantages of magnetic cards are easy information reading and low cost in operation for widely used.

On the other hand, the disadvantages of magnetic cards are easy cloned and interfered by other magnetic field or being damaged .

As a result, never put it together with cell phone or metal stuff such as keys.It would cause phone failure possibly and the keys will scratch the magnetic stripe unexpectedly.

China's second generation ID card is used with the latest IC Card technology,which can provide security,confidentiality and fast information reading by machine.

Compared with magnetic card, IC card information is stored in the chip,preventing possible interference and physical damage,which has the advantages of longer working periods and higher information capacity.However,there is a problem for ID card now we are encountering.That's the cost of fabrication and machine re-new,such as IC card cost and ATM machine re-new adaptable to IC card.That would be a huge number of money for the bank or other business,which is why IC card is still in the slow process of putting in use.

For safety and technology problems,IC card would be definitely necessary instead of magnetic cards. 

再次感谢您对我们工作的理解与支持！

祝学习进步，生活愉快！

必克英语

2013年5月8日